Surface advertisements also spotted at Grand Central station, New York

Microsoft's Surface advertising campaign appears to be in more public locations than first believed, thanks to a batch of photos sent in by Windows Phone Central reader Micah. The Windows 8 tablets that are being developed at Redmond have already been spotted in a subway in Washington DC, and a handful of photos were thrown up earlier today.

Now we can confirm similar adverts (with a pink coloured Surface tablet) are featured at Grand Central station, New York. As mentioned in our earlier coverage, the promotion material is unique, straight to the point, and effectively shows off the design of the Surface. Check out a few more photos after the break.